This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.

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Huu hapa ni ufumbuzi wa swali la 11(b):
11(b) Eleza kwa nini grafiti huendesha umeme wakati almasi haiendeshi.
Step 1: Eleza muundo wa grafiti na uendeshaji wake wa umeme. Grafiti ina muundo wa tabaka ambapo kila atomi ya kaboni imeunganishwa na atomi nyingine tatu za kaboni katika mpangilio wa heksagoni. Kila atomi ya kaboni ina elektroni moja ya valensi isiyofungwa (delocalized electron) ambayo inaweza kusogea kwa uhuru kati ya tabaka, na hivyo kuwezesha grafiti kuendesha umeme.
Step 2: Eleza muundo wa almasi na kutokuendesha kwake umeme. Almasi ina muundo wa kimiani imara wa pande tatu ambapo kila atomi ya kaboni imeunganishwa na atomi nyingine nne za kaboni kupitia vifungo imara vya kovalent. Elektroni zote za valensi zimefungwa katika vifungo hivi na hakuna elektroni huru zinazopatikana kusogea, hivyo almasi haiwezi kuendesha umeme.
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Huu hapa ni ufumbuzi wa swali la 11(b): 11(b) Eleza kwa nini grafiti huendesha umeme wakati almasi haiendeshi.
This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.